Basics of SQL databases 🗄️
English
Pertengahan
Simple and useful quiz to test basic knowledge of SQL databases.
Keterangan
30
Soalan
1 minit
Setiap soalan
7:14
Masa purata
3.0
Skor Pertandingan
32
Peserta
1 komen
Hip Goose
Q. What constraint should used for unique values.
Option contains both 1.Primary key and 2.Unique key ;
my question is why only primary key is correct...

Waiting for some reasonable answer.
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